w3c.model.www.pep.PEPExtension

package w3c.model.www.pep;

import w3c.model.www.pep.altlib.*;
import w3c.model.www.pep.bags.ExtDecl;

abstract public class PEPExtension 
    protected PEPAgent pepAgent;
    protected String URI;

/* 
<A NAME=constState>Message construction states</A> - the PEPExtension may be called 
at each of these states. It must decide when to do it's thing.
*/
    public final static int CONNECT = 1;
    public final static int STARTLINE = 2;
    public final static int NON_PEP_HEADERS = 3;
    public final static int HEADERS = 4;
    public final static int BODY = 5;

    protected void initialize(PEPAgent pepAgent, String URI) {
	this.pepAgent = pepAgent;
	this.URI = URI;
    }

    public String getURI () {
	return URI;
    }

    public boolean equals(String URI) {
	return URI.equals(this.URI);
    }

/*

All construction arguments are passed in the initialize method. Class.newInstance can only call default constructors.

PEPAgent.load constructs and initializes the extension. The extension initializer below calls PEPExtension.initialize above. Extensions may also be initialized the agent directly.

*/
    public PEPExtension() {
    }
    abstract public void initialize (PEPAgent pepAgent, boolean requiredExtension) throwsHttpParserException;
    abstract public boolean map (InstanceContext instanceContext, int when, PEPMessage message, String reason);
/*

*/
    abstract public boolean generateHeaders(InstanceContext instanceContext, int when) throwsHTTPException;
    abstract public boolean handleHeaders(InstanceContext instanceContext, int when) throwsHTTPException;
/*

*/
    abstract public PEPExtensionInstance makeInstance(String headerNames[], int headerNameCount, InstanceContext instanceContext);